Conducted Electromagnetic Interference (EMI) in Smart Grids

Smoleński, Robert

doi:10.1007/978-1-4471-2960-8

Cited by 26 publications

(17 citation statements)

References 46 publications

(50 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Power and power quality measuring system can be also influenced by elevated harmonic levels in frequency range above 2 kHz because of limited bandwidth of used voltage and current transducers [8]. This problem become more critical in smart grids where smart metering systems tends to be more complex and advanced and also use power line communication methods [4], [9], [8], [10], [11]. In the commercial environment there are also known occurrence of interfering of audio systems by grid connected PWM converters, which are nowadays widely applied in contemporary interruptible power supply system.…”

Section: Introductionmentioning

confidence: 99%

High frequency harmonics emission of modern power electronic AC-DC converters

Łuszcz

2013

2013 International Conference-Workshop Compatibility and Power Electronics

View full text Add to dashboard Cite

Modern AC/DC converters with bidirectional power flow employing PWM boost topology generate harmonic distortions of input current in relatively high frequency range tightly related to modulation carrier frequency. These frequencies and its multiples in typical applications are usually located in frequency range from single up to several of kHz. Increased harmonic emission in this frequency range can easily and harmfully influence sensitive control and measurement systems what occurs more often nowadays in applications where high power AC/DC PWM boost converted are used. This paper presents a comparison of current harmonic emission of PWM boost rectifiers with relation to classic diode rectifiers. New class of electromagnetic compatibility problems arising in power system are underlined as a result of increased harmonic distortions emission in frequency range up to 9 kHz.

show abstract

Section: Introductionmentioning

confidence: 99%

High frequency harmonics emission of modern power electronic AC-DC converters

Łuszcz

2013

2013 International Conference-Workshop Compatibility and Power Electronics

View full text Add to dashboard Cite

show abstract

“…In fact the utilization of random modulation does provide ostensible reduction [18,19] of the interference levels measured, in accordance with EMC standards, in the frequency domain. Fig.…”

Section: Deterministic Vs Random Modulation Of Power Electronic Intementioning

confidence: 56%

Diophantine equation based model of data transmission errors caused by interference generated by DC-DC converters with deterministic modulation

Bojarşki¹,

Smoleński²,

Leżyński³

et al. 2016

Bulletin of the Polish Academy of Sciences Technical Sciences

View full text Add to dashboard Cite

Abstract. The assurance of the electromagnetic compatibility of sensitive smart metering systems and power electronic converters, which introduce high-level electromagnetic interference is important factor conditioning reliable operation of up to date power systems. Presented experimental results have shown that currently binding, frequency domain tests are ineffective for the evaluation of data transmission error hazards. The proposed in this paper mathematical, time-domain model, based on Diophantine equation, enables evaluation of data transmission errors caused by interference introduced by DC-DC power electronic interfaces with deterministic modulation. In the paper there have been presented possible application areas for the proposed model. Thus, evaluation of the probability of the appearance of data transmission errors, caused by interference generated by power electronic converters, is important for both cognitive and technical reasons. Elaboration of the presented mathematical model has enabled explanation of significant differences in experimentally obtained distributions of awaiting times for data transmission errors caused by interference generated by a DC-DC converter with random [9-11] and deterministic modulation. The evaluated probability of the appearance of data transmission error may become a useful factor supporting the development of data transmission systems.The DC-DC converter was selected as an interference source for mathematical analyses of data transmission errors caused by interference generated by converters with deterministic modulation. A detailed description of the interference introduced by a DC-DC converter [12][13][14] has been presented in our previous paper [15]. Deterministic vs. random modulation of power electronic interfacesRandom modulation of power electronic interfaces is often recommended as an EMI reduction technique [16,17]. In fact the utilization of random modulation does provide ostensible reduction [18,19] of the interference levels measured, in accordance with EMC standards, in the frequency domain. Fig. 1 shows the experimental results for conducted emission generated by a DC-DC converter with deterministic and random modulation, measured using average detector, in accordance with the EN 55022 standard, with the upper limit of the frequency range reduced from 30 MHz to 5 MHz for better clarity of the results.

show abstract

“…In such systems there are two common mode voltage sources (at the input and the output) and significant ripples of the dc-link-to-heatsink voltage [53]. EMI can be reduced using active or passive compensation [54] of the interference sources and the dc-link-to-heatsink voltage ripples [52] [53].…”

Section: B Main Emc Issuesmentioning

confidence: 99%

“…the flow of interferences over distant circuits, the influence of interferences on control signal transmission, etc. The smart grids related systems have to meet requirements concerning power quality and must assure internal EMC of power electronic converters [52].…”

Section: B Main Emc Issuesmentioning

confidence: 99%

State of the art of active power electronic transformers for smart grids

Roasto

Romero‐Cadaval

Martins

et al. 2012

IECON 2012 - 38th Annual Conference on IEEE Industrial Electronics Society

Self Cite

View full text Add to dashboard Cite

The idea of power electronic transformer is known already over 20 years. There are numerous papers written about power electronic transformers. In the literature one can find tens on different topologies, control methods, standards, requirements etc. It is easy to loose insight what topology to use and where. In this paper a general overview of the power electronic transformer technology in terms of smart grids is presented. The information collected from the literature is classified and organized. In conclusion some generalizations are made and development trends are shown.

show abstract

Conducted Electromagnetic Interference (EMI) in Smart Grids

Cited by 26 publications

References 46 publications

High frequency harmonics emission of modern power electronic AC-DC converters

High frequency harmonics emission of modern power electronic AC-DC converters

Diophantine equation based model of data transmission errors caused by interference generated by DC-DC converters with deterministic modulation

State of the art of active power electronic transformers for smart grids

Contact Info

Product

Resources

About